hosford



2 Sheets--Sheet 1.

E. HOSFORD Portable Range.

Patented July 28, 1868.

NJETHB PIIOTO-LITNOGRAPNER, WASHINGTON. I) C 2 'Sheets- Sheet 2." E. HOSFORD.

Portable Range. No. 80,484. Patgnted July 28,1868! 772 5 3 955 RU enfa 7'; 1

N. PETERS. PNOTOJJTNDGRAPHER. WASHINGTON. D 0.

ELI'HU'HOSFOR'D, or CHICAGO, ILLINOIS.

- Letters Patent No. 80,484, dated July 28, 1868.

IMPROVEMENT n RANGES.

digs Stlgrhule numb in in tlgrst ittttzrs haunt mu: muting int at the same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, ELIHU HOSFORD, of Chicago, in the county of Cook, and in the State of Illinois, have invented an Improved Portable Range; and do hereby declare that the .following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a. part of this specification, in

which- Figure 1 is a front elevation.

Figure 2 is a longitudinal perpendicular section.

Figure 3 is a section of fig. 1 onthe line x :c.

Figure 4 is a section of fig. 1 on the line 31..

Figure 5 is a side elevation of the grate, and mechanism by which it is operated.

Figure 6 is an enlarged section of fig. 5 on the line 2 z.

Letters of like name and kind refer to like parts in each of the figures.

' The nature of my invention consists in adapting the. method of consuming coal by means of a downward draught to' the purposes of cooking, and also iu an improved grate, and means for preserving and operating the. same, as is hereinafter fully described. 4 l

As in myheating-stove, for which Letters Patent, No. 76,455, were granted, April 7,1868, I make use of a cylinder, A, grate B, combustion-chamber C, hollow columns D, hot-air chamber E, smoke-flue F, and damper G, whereby, when the coal is ignited and, thedamper G closed, the air, entering through the perforated feeddoor a, is drawn downward through the coal into the combustion-chamber C, carrying with it the gas and smoke, which are consumed by contact with the ignited coal, and from thence through the hollow colu'mnsD and hot-air chamber E, into the smokeflue F.

The combustion-chamber C is. enlarged, so that .there is suflicicnt space upon its topi'or six or more openings, covered with lids, ns in ordinary ranges, and the air-space H deepened and provided with doors, It, form ing an oven for roasting, broiling, baking, 85c. I

Within the hot-air chamber E are two ovens, I, each placed directly over two of the columns D, which are provided with dampers, cl, by means of which one or more of the columns can be closed, and the heat caused to pass around such portion of either oven as maybe dcsiredr Experience having proved that the intense heat caused .by passing the gasand smoke through ignited coal. destroys, in a short time, a grate of metal or soapstone, it has'been found necessary to introduce a current of cool air beneath the grate, which completely protects it from injury, so that it will last as long as in stoves using the upward draught. The currentof air, also, assists in producing more perfect combustion of the gas and smoke. v I

The air is introduced by means of an enlargement of thctube K, through which the spindle L passes, which is provided with ribs projecting inwards, as shown in ti, between which suilicient space is left for the spindle to more freely up and down. v

The top of the grate B is conical, to enable the ashes to fall easily into the combustion-chamber, and rests, by means of a socket, upon the end of a 'spindle, L, whiclrpasses through the tube K, and is pivoted to the end of a lever, M. l

The lever M is suspended near its'middlc, and the outer and terminates in a handle, by Inca us of'which the grate may be raised or lowered.

As the draught will be controlled, in a great measure, by increasing or diminishing the space between the bottom of the cylinderaz'id the gra tc, thc handle of the lever is provided with a number of teeth, which are engaged by a catch, U, for thc purpose of securingthe grate at any desired height.

Around the edge of the grate are a number of holes or sockets, to receivethe .end of a lever,if found necessary to rotate and shake the grate, in order to clean the fire. It is believed, however, that the draughtwill remove all ashes as soon as formed. i

The superiority of the method of eonsumingthe gas and smoke from-coal (containing a large proportion eons-r 2 of its heating-properties) by passing them downward through the burning coal is obvious, and requires no comment, and it only remains for me to state the advantages possessed by this combination of parts for applying the method to cooking purposes.

First, it allows the heat to be increased or diminished under any'of the openings 0, by so adjusting the valves upon the top of the columns as to throw the draught within the combustion-chamber towards or from that point.

Second, it furnishes two ovens within the hot-air chamber, in which the temperature can be perfectly controlled by adjusting the valves d, so as to admit beneath the ovens more or less heated air, as may be necessary.

Third, by means of the oven beneath the combustion-chamber, meats, fowls, or game can be roasted, baked, or broiled in the most perfect manner. The heat being applied to the upper side only, the dish or tray remains comparatively cool, and renders unnecessary the use of water in the dish to avoid burning either meat or gravy, as in ordinary ovens. This method of roasting, broiling, $10., more nearly resemble that of former times than any other, when the article, being cooked, was placed in front of an open fire, and a Dutch even set before it, and produces a style of cooking unequalled in point of richness and flavor.

Fourth, the manner of operating the grate is easy and simple. By use of the lever it can be readily raised or lowered, when necessary, in order, to control the draught or dump the coal, and, by means of the catch M, can be secured in whatever position it is placed.

Fifth, by the admission of a current of cool air beneath the grate, the latter is enabled to withstand the intense heat, and the use of the downward draught, with all its advantages, is thus rendered practicable.

Having thus set forth the nature and merits of my improvement, what I claim as my invention, and desire to secure by Letter Patent, is

1. The application of a current of cool air to the under side of the grate, in the manner and for the purpose substantially as herein described. I

2. The oven H, formed by enlarging the air-space and providing suitable doors, in combination with the cylinder A, combustion-chamber C, columns I), and hot-air chamber E, substantially as herein specified.

In testimony that I claim the foregoing, I have hereunto set my hand, this 1st day of June, 1868.

- ELIHU nosronnl Witnesses:

Emu. F. Bnowu, G120; S. PRINDLE. 

